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helped establish the importance of large optical reflecting telescopes, and expanded astronomers' understanding of nebulae. After his untimely death, his colleagues at Lick
Observatory arranged for the publication of his photographs of nebulae and clusters in a special volume of the Lick Observatory
210:
in 1891. He returned to Lick
Observatory as its director in 1898 but died not long after in 1900. Keeler suffered from a heart weakness that went undiagnosed until shortly before his death. On the 12th of August, he died from a sudden
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that the rings are made up of countless small objects, each orbiting Saturn at its own rate. These observations were made with a spectrograph attached to the 13-inch Fitz-Clark refracting telescope at
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427:'s atmosphere, comparing the results at high altitude with those found at lower levels. As a result of the expedition, a 14,240-ft. peak near
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using photography, as well as the first to show observationally that the rings of Saturn do not rotate as a solid body.
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His parents were
William F. and Anna (nÊe Dutton) Keeler. He had married in 1891 and left a widow and two children.
551:
Osterbrock, D. E.; Cruikshank, D. P. (1983). "J. E. Keeler's discovery of a gap in the outer part of the A Ring".
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215:. His ashes were interred in a crypt at the base of the 31-inch Keeler Memorial telescope at the
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Keeler, J. E. (1908). "Photographs of
Nebulae and Clusters made with the Crossley reflector".
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Keeler, J. E. (1895). "A spectroscopic proof of the meteoric constitution of Saturn's rings".
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Keeler was born in La Salle
Illinois, but grew up and spent the majority of his early life in
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around Saturn. This was the first observational confirmation of the theory of
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956:
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267:, Keeler's contributions were brought to light. The second major gap in the
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taken by Keeler in 1899 were used to determine the proper motion of the
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revealed that different parts of the rings reflect light with different
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beginning in 1888 but left after being appointed director of the
930:"List of Fellows and Associates deceased during the past year"
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on 7 January 1888. After this feature had been named for
167:(September 10, 1857 â August 12, 1900) was an American
642:. Asteroid Lightcurve Database (LCDB). Archived from
419:. The purpose of the expedition was to study how the
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232:, which remains a major journal of astronomy today.
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935:Monthly Notices of the Royal Astronomical Society
771:Monthly Notices of the Royal Astronomical Society
404:in 1899. In 1900 he was elected president of the
965:National Academy of Sciences Biographical Memoir
838:Dictionary of Minor Planet Names â (2261) Keeler
526:Mission to Saturn: Cassini and the Huygens Probe
423:'s radiation was selectively absorbed by the
8:
487:The Biographical Encyclopedia of Astronomers
840:. Springer Berlin Heidelberg. p. 184.
836:Schmadel, Lutz D. (2007). "(2261) Keeler".
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243:Keeler was the first to observe the gap in
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29:
955:
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411:In 1880, Allegheny Observatory director
318:In 1895, his spectroscopic study of the
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589:"Minor Planet Discoverers (by number)"
438:in Saturn's rings, the Martian crater
882:Works by or about James Edward Keeler
7:
740:Publications of the Lick Observatory
765:Wyckoff, S.; Murray, C. A. (1977).
406:Astronomical Society of the Pacific
373:until its recovery 99 years later.
767:"Proper motion of the Crab pulsar"
25:
990:19th-century American astronomers
891:Campbell, W. W. (November 1900).
530:. Chichester: Praxis Publishing.
1015:University of Pittsburgh faculty
640:"LCDB Data for (452) Hamiltonia"
226:, Keeler founded and edited the
40:
474:", National Academy of Sciences
431:was named the "Keeler Needle".
380:in 1967, optical images of the
341:His observations with the Lick
171:. He was an early observer of
846:10.1007/978-3-540-29925-7_2262
1:
1005:Heidelberg University alumni
873:Works by James Edward Keeler
811:National Academy of Sciences
575:10.1016/0019-1035(83)90139-2
402:National Academy of Sciences
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928:H. H. T. (February 1901).
615:"452 Hamiltonia (1899 FD)"
522:Harland, David M. (2002).
454:, are named in his honor.
450:, as well as the asteroid
326:, due to their different
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84:San Francisco, California
39:
1000:Discoverers of asteroids
995:American astrophysicists
369:in 1900, which became a
204:University of Pittsburgh
179:Career and personal life
792:10.1093/mnras/180.4.717
484:Hockey, Thomas (2009).
413:Samuel Pierpont Langley
396:Keeler was awarded the
376:After the discovery of
189:Governor of Connecticut
957:10.1093/mnras/61.4.197
349:Keeler discovered two
898:Astrophysical Journal
893:"James Edward Keeler"
696:Astrophysical Journal
336:Allegheny Observatory
288:discovered: 2
229:Astrophysical Journal
217:Allegheny Observatory
208:Allegheny Observatory
153:Allegheny Observatory
103:Astrophysical Journal
807:"Henry Draper Medal"
948:1901MNRAS..61..197.
911:1900ApJ....12..239C
783:1977MNRAS.180..717W
752:1908PLicO...8....1K
709:1895ApJ.....1..416K
673:Minor Planet Center
619:Minor Planet Center
593:Minor Planet Center
567:1983Icar...53..165O
492:Springer Publishing
472:Biographical Memoir
444:, the lunar crater
434:In addition to the
332:James Clerk Maxwell
289:
165:James Edward Keeler
46:James Edward Keeler
34:James Edward Keeler
27:American astronomer
817:on 26 January 2013
398:Henry Draper Medal
343:Crossley telescope
284:
121:Henry Draper Medal
66:La Salle, Illinois
62:September 10, 1857
877:Project Gutenberg
855:978-3-540-00238-3
669:"20958 (A900 MA)"
537:978-1-85233-656-1
501:978-0-387-31022-0
392:Honors and legacy
371:lost minor planet
361:in 1899, and the
316:
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253:36-inch refractor
247:now known as the
198:Keeler worked at
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129:Scientific career
16:(Redirected from
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1010:Lick Observatory
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959:
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886:Internet Archive
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813:. Archived from
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298:December 6, 1899
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257:Lick Observatory
200:Lick Observatory
185:Mayport, Florida
149:Lick Observatory
111:astrophotography
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646:on 5 March 2017
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367:(20958) A900 MA
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320:rings of Saturn
306:(20958) A900 MA
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107:Rings of Saturn
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76:August 12, 1900
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867:External links
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346:publications.
328:rates of orbit
324:Doppler shifts
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281:in his honor.
245:Saturn's rings
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819:. Retrieved
815:the original
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648:. Retrieved
644:the original
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363:Mars-crosser
348:
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261:Johann Encke
251:, using the
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193:Henry Dutton
182:
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145:Institutions
128:
78:(1900-08-12)
18:James Keeler
985:1900 deaths
980:1857 births
905:: 239â253.
821:19 February
703:: 416â427.
452:2261 Keeler
386:Crab Pulsar
382:Crab Nebula
224:George Hale
222:Along with
91:Nationality
974:Categories
507:August 22,
458:References
436:Keeler gap
279:Keeler Gap
169:astronomer
58:1857-09-10
400:from the
365:asteroid
357:asteroid
249:Encke Gap
139:Astronomy
239:Research
173:galaxies
94:American
944:Bibcode
907:Bibcode
884:at the
779:Bibcode
748:Bibcode
725:4032782
705:Bibcode
678:21 June
650:21 June
624:21 June
599:21 June
563:Bibcode
378:pulsars
355:Koronis
274:Voyager
852:
723:
554:Icarus
534:
498:
447:Keeler
441:Keeler
353:, the
269:A Ring
265:A Ring
213:stroke
135:Fields
123:(1899)
117:Awards
746:: 1.
721:S2CID
470:See "
425:Earth
850:ISBN
823:2011
680:2016
652:2016
626:2016
601:2016
532:ISBN
509:2012
496:ISBN
73:Died
52:Born
952:doi
915:doi
875:at
842:doi
787:doi
775:180
713:doi
571:doi
421:Sun
255:at
206:'s
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940:61
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903:12
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
